RU2540638C2 - Dust collector - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: invention relates to gas cleaning. A dust collector including a housing containing at least three capacities hydraulically connected to each other, a device for cleaning of a gas flow from solid particles and a moisture collecting device differs by the fact that its housing is made of three detachable sections, out of which the first one and the third one serves for suction and formation of a gas flow, and the second one that is located between them serves for arrangement of a centrifugal-bubbling stage of wet gas cleaning and two drop catchers for moisture catching, which are in-series installed one after another in the gas flow direction; with that, inside the third section there additionally installed is a suction fan rigidly and tightly attached to the housing by means of a separating diaphragm.

EFFECT: efficient cleaning of a gas flow.

3 cl, 3 dwg

Description

The invention relates to the field of gas purification, and more specifically to a dust collector, and can be used in various industries for the processing of process gases or for cleaning industrial objects from dust.

A known dust collector comprising a cylindrical body with gas inlet and outlet pipes, a venturi pipe with a static twist and an additional cylindrical glass with partitions and a shutter for closing the neck of the venturi pipe or gas outlet pipe (description of the invention SU No. 1152627 A1, IPC: B01047 / 10, 1985 g.).

The reasons that impede the achievement of the technical result indicated below when using the known device include the fact that it is ineffective and unreliable during operation, as it has high hydraulic resistance and does not exclude drip entrainment of the liquid with the exhaust gas stream. In addition, it is completely incompatible with traditional dust cleaning devices used in ventilation cleaning systems.

The closest set of features to the claimed device is another gas purification system (patent application RU No. 2008123256 / 15A, IPC: B01D 50/00, 2010), containing at least one housing with filtering devices for separating solid particles and a device for dehydration.

The reasons that impede the achievement of the technical result indicated below when using the known device adopted for the prototype include the fact that the known gas purification system is also not without the above disadvantages. It is ineffective in operation and unreliable during operation. The cyclone separates the solid components of industrial dust well, but it is completely unsuitable for dehydration and removal of coagulated resinous liquids with high viscosity and chemical activity resulting from the interaction of industrial cleaned gas with a liquid absorbent. In addition, cyclones have large dimensions and always require their vertical installation, which is not acceptable for ventilation cleaning systems in domestic premises.

The task of the invention is to eliminate the above disadvantages inherent in known devices by creating and implementing a new design of the dust collector.

This problem is solved by achieving a technical result, which consists in obtaining a new design of the dust collector with high efficiency and reliability in operation, as well as reducing all costs, including operating costs.

The specified technical result when implementing the invention on the object device is that in the proposed dust collector its body also contains three independent volumes, inside of which there are devices for cleaning the gas stream from solid particles of dust and moisture. The difference of this device is that its body is made in the form of three detachable sections, of which the first and third sections are used for suction and gas flow formation, and the second section, located between the first and third sections, serves to accommodate a centrifugal-bubbling stage for wet gas purification and two droplet eliminators, installed sequentially one after another in the direction of gas flow of the gas to be purified, moreover, inside the third section there is an additional suction fan, rigid and tight conjugate using the diaphragm seal with the outer shell.

The specified technical result is also achieved by the fact that all three sections of the dust collector body are made in the form of rectangular ventilation ducts of noise- and heat-insulated flat panels, which are hermetically and rigidly connected into a single structure using sealing elements made of elastomer and self-locking fastening metal screws and bolts.

The specified technical result is also achieved by the fact that the centrifugal-bubble stage of the dust collector for wet gas purification is made in the form of two hollow glasses, which are rigidly and hermetically connected to each other by means of a lattice plate swirler and are asymmetrically mounted in the horizontal plane of the ventilation duct relative to its longitudinal axis, and from the side opposite from the inlet of the ventilation duct behind the swirl, an arcuate chipper is installed, and on the side surface lower pole window glass made gas passage, wherein the bottoms of both the above cup are provided with holes for entry and exit of the liquid absorbent.

In the study of the distinguishing features of the claimed device did not reveal any similar known solutions regarding the execution of its housing from three detachable sections, two of which are used for the intake and formation of the gas stream, and the third - to accommodate devices for wet and dry cleaning of the gas stream from solid particles dust and moisture. And also no similar solutions have been identified regarding the centrifugal-bubble stage for wet cleaning in the form of two cups fastened with a plate swirler and their installation inside the dust collector body.

The analysis of the prior art by the applicant, including a search by patents and scientific and technical sources of information containing information about analogues of the claimed solution, made it possible to establish that there is no analogue characterized by features that are identical (identical) to all the essential features of the claimed invention.

Therefore, the claimed invention meets the condition of "novelty" under the current law.

To verify the claimed invention, the condition of "inventive step", the applicant conducted an additional analysis of known solutions in order to identify features that correspond with the distinctive features of the claimed solution. The results of the analysis showed that the claimed solution does not follow explicitly for a specialist from the prior art and could be obtained only with a deep and comprehensive study of this issue.

Therefore, the claimed invention meets the requirement of "inventive step" under applicable law.

In FIG. 1 shows a general view of the dust collector.

In FIG. 2 shows section AA in FIG. one.

In FIG. 3 shows a section BB in FIG. one.

Information confirming the possibility of implementing the claimed invention using the specified technical result, are as follows.

The inventive dust collector includes a housing (Fig. 1), made in the form of three detachable sections 1, 2, 3, of which section 1 serves to enter the gas flow into the dust collector, the second section to accommodate a centrifugal-bubble stage 4 for wet cleaning and two dehumidifiers 5, 6, and the third section 3 serves to install the suction fan 7 and the separation membrane 8. Moreover, all three sections 1, 2, 3 are made in the form of rectangular ventilation ducts from noise and heat insulating panels 9 (Fig. 2), hermetically united in a single cons ruktsiyu via sealing members 10 and self-locking fasteners (not shown conditionally and not indicated). In this case, the centrifugal-bubbling stage 4 for wet cleaning is made of cylindrical cups 11, 12, which are interconnected by means of a lattice plate swirler 13 and made with holes for the passage of liquid absorbent and gas flow (shown in the drawings conditionally and therefore not indicated). Under the centrifugal-bubbling stage 4, a pallet 14 is installed, which serves to receive liquid absorbent and install drop eliminators 5, 6, while the centrifugal-bubbling stage 4 itself is installed asymmetrically with respect to the axes of the internal volume of section 2 and is surrounded by an arcuate chipper 15 (Fig. 3), forming gas flow before and after its entry into the centrifugal bubble stage 4 wet cleaning. The design of the second section 2 allows you to install it in any ventilation device, both at the inlet and at the outlet. And additional equipment with the first stage 1 and third stage 3 makes the design more mobile and functional. Such a dust collector can be installed both indoors and outdoors and provides the required efficiency for any degree of contamination of the gas stream.

The device operates as follows. The contaminated gas stream enters the inlet window of the first section 1, from which it then enters section 2. Inside section 2, the gas enters first through a trellised plate swirler 13 into a centrifugal-bubble stage 4 of wet cleaning. At the same time, a liquid absorbent enters into the swirl 13 from the glass 11, which at the same time breaks up into small bubbles and enters the glass 12 in the form of a swirl-foam swirl. In the glass 12, coagulated dust particles and liquid absorbent are separated from the gas stream. The gas stream purified from solid particles of dust and liquid absorbent changes its direction and enters first into the first droplet eliminator 5, and then into the second droplet eliminator 6. In this case, the liquid absorbent and coagulated solid dust particles from the cup 12 enter the tray 14, from where they are discharged into sewer runoff or undergo additional cleaning and return again to the dust collector. Next, the cleaned and dried gas stream through the separation diaphragm 8 enters the inlet of the suction fan 7. The fan 7 not only generates a gas stream, but also provides the necessary pressure difference at the inlet and outlet of section 2. By changing the speed of the rotating impeller of the suction fan 7, it is easy to establish the required the ratio of liquid absorbent in the gas stream, regardless of the degree of contamination of the latter. This does not exclude the installation of an additional blower fan in the first section 1, if the gas stream is very dirty and chemically active, and an additional chemical absorber in the second section 2. In normal operation, the dust collector works without these additional devices, using ordinary industrial water as a liquid absorbent and traditional sewage for its disposal.

The technical effect of the use of the invention is as follows:

The proposed dust collector provides all the necessary requirements for treatment devices of this class. It is simple to manufacture and reliable in operation, and also does not require metal-consuming and expensive components and materials in its implementation. This design of the dust collector is easily mounted in any room at no additional cost, while ensuring a high degree of cleaning. The costs during operation of this device are also minimal in comparison with other similar devices. The advantages of this device should also include the fact that this dust collector does not spoil the external interior of the room and therefore can be installed in any office or residential premises, while ensuring high cleaning efficiency combined with minimal implementation costs, including operating costs.

Thus, the above information shows that when using the claimed invention, the following combination of conditions:

- a tool embodying the claimed invention in its implementation, is intended for use in industry, namely, as cleaning equipment for cleaning any objects, including industrial premises and offices;

- for the claimed invention in the form described in the independent clause of the claims, the possibility of implementation using the methods and methods described above or known prior to the priority date is confirmed;

- means embodying the claimed invention in its implementation, are able to ensure the achievement of the perceived by the applicant technical result.

Therefore, the claimed invention meets the condition of "industrial applicability" under applicable law.

Information sources

1. Description of the invention SU No. 115262 A ¹ , IPC: B01D 47/10, 1985

2. Patent application RU No. 2008123256 / 15A, IPC: B01D 50/00, 2010

Claims (3)

1. Dust collector, comprising a housing containing at least three hydraulically interconnected volumes, a device for cleaning the gas stream from solid particles and a device for collecting moisture, characterized in that its body is made of three detachable sections, of which the first and third serve for the suction and formation of a gas stream, and the second, located between them, serves to accommodate the centrifugal-bubbling stage of wet gas purification and two drip traps for trapping moisture, which are sequentially installed claimed one another during the movement of the gas stream, wherein the third section is mounted inside the further suction fan is rigidly and sealingly coupled to the housing by means of the diaphragm seal. 2. The dust collector according to claim 1, characterized in that all three sections of its housing are made in the form of rectangular ventilation ducts of noise- and heat-insulating flat panels, which are hermetically and rigidly connected into a single structure using sealing elements made of elastomer and self-locking mounting metal screws and bolts. 3. The dust collector according to claims 1 and 2, characterized in that the centrifugal-bubbling stage for wet gas purification is made in the form of two hollow cylindrical cups, which are rigidly and hermetically connected to each other by means of a lattice plate swirler and are asymmetrically installed in the horizontal plane of the ventilation duct relative to its longitudinal axis, and from the side opposite from the inlet of the ventilation duct behind the swirl, an arc-shaped chipper is installed, and on the side surface of the lower glass made windows for the passage of gas, while in both bottoms of the above glasses made holes for entry and exit of the liquid absorbent.

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